Airflow guiding device of passenger car air conditioner evaporator

Abstract

The utility model discloses an air flow guiding device of a passenger car air conditioner evaporator, and relates to the technical field of evaporators. The device comprises a mounting plate, wherein a pipeline communicated with the output end of an external evaporator is mounted on the mounting plate; and the gas-liquid separation mechanism is arranged at the end part of the pipeline and is used for separating condensate water mixed in the cooling gas. By arranging the gas-liquid separation mechanism, condensed water drops which are carried by high-speed airflow and are generated on the surface of the evaporator can be actively intercepted and separated, and the risk that the condensed water is sucked by a fan and is directly blown into a carriage of a passenger car is remarkably reduced or even eliminated; therefore, the problems of local moisture, discomfort of passengers and peculiar smell caused by spraying of the condensate water in the compartment are effectively avoided, and the comfort level of the passengers and the environmental quality of the compartment are improved.

Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, specifically to an airflow guiding device for a bus air conditioning evaporator. Background Technology

[0002] The automotive air conditioning system mainly consists of a compressor, condenser, receiver, expansion valve, evaporator, fan, piping, and control components. When the air conditioning system is turned on, the air conditioning compressor starts running and sends refrigerant to the evaporator. The evaporator is cooled by the refrigerant, which in turn cools the air from the blower. The cool air is then sent to the passenger compartment through the fan and piping to lower the temperature.

[0003] When installing air conditioning in a bus, due to its large interior space, the bus air conditioning system needs to provide a large flow of cold air. Generally, a pair of evaporators are symmetrically installed on the left and right sides of the air conditioning assembly, and a fan is installed at the air conditioning vent corresponding to each evaporator. The suction of the fan is used to bring the air cooled by the evaporator into the passenger compartment. However, in actual use, condensation is easily generated on the surface of the evaporator. If the condensation is directly washed away by the high-speed airflow, it may be carried into the passenger compartment, resulting in dampness or odor. In order to reasonably improve this problem, this utility model proposes an airflow guiding device for bus air conditioning evaporators. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problem that condensation easily forms on the surface of the evaporator, and if the condensation is directly washed away by high-speed airflow, it may be carried into the passenger compartment, resulting in dampness or odor. This utility model provides an airflow guiding device for the evaporator of a bus air conditioner.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A passenger car air conditioning evaporator airflow guiding device includes:

[0007] The mounting plate has pipes that connect to the output of the external evaporator.

[0008] A gas-liquid separation mechanism is located at the end of the pipe to separate condensate entrained in the cooling gas.

[0009] Furthermore, the gas-liquid separation mechanism includes a vertical pipe, which is vertically connected to the middle of the pipeline. The bottom end of the vertical pipe is provided with a collection part, and a baffle is provided inside the vertical pipe and located at the output end of the pipeline.

[0010] Furthermore, the baffle has an inclined section and a vertical section, the vertical section extending toward the collection section.

[0011] Furthermore, the collection section includes an unglazed ceramic jar with a conical surface at the top, the inlet of which is located at the lowest point of the conical surface, and the unglazed ceramic jar is connected to the bottom end of the vertical pipe.

[0012] Furthermore, both the inner and outer walls of the unglazed pottery jar are serrated.

[0013] Furthermore, the unglazed ceramic jar is threaded to the bottom end of the vertical pipe.

[0014] Furthermore, the pipe is rotatably fitted with the mounting plate.

[0015] Furthermore, there are two pipes, and the mounting plate has a flow divider cavity that is connected to the two pipes. An air inlet connected to the flow divider cavity is provided on the other side of the mounting plate.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention, by setting up a gas-liquid separation mechanism, can actively intercept and separate condensate droplets generated on the surface of the evaporator by high-speed airflow, significantly reducing or even eliminating the risk of condensate being sucked into the fan and directly blown into the passenger compartment. This effectively avoids localized dampness, passenger discomfort, and odor problems caused by condensate spraying in the passenger compartment, thereby improving passenger comfort and the quality of the passenger compartment environment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a utility model Figure 1 A top-section view of the structure;

[0020] Figure 3 This is a utility model Figure 1 Schematic diagram of a partial structure;

[0021] Figure 4 This is a utility model Figure 3 Schematic diagram of half section of structure;

[0022] Reference numerals: 1. Mounting plate; 2. Pipeline; 3. Gas-liquid separation mechanism; 301. Vertical pipe; 302. Collection section; 3021. Unglazed ceramic jar; 3022. Conical surface; 303. Baffle; 3031. Inclined section; 3032. Vertical section; 4. Diversion chamber; 5. Air inlet. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figures 1-4 As shown, an embodiment of this utility model provides an airflow guiding device for a bus air conditioning evaporator, comprising:

[0025] Mounting plate 1 is installed on the evaporator. Mounting plate 1 is equipped with pipe 2 that connects to the output end of the external evaporator. That is, the gas cooled by the evaporator will flow out through pipe 2.

[0026] The gas-liquid separation mechanism 3 is located at the end of the pipe 2. The gas-liquid separation mechanism 3 is located between the pipe 2 and the existing fan to separate the condensate entrained in the cooling gas. This can prevent the condensate from contacting the fan, reduce the potential corrosion damage of moisture to the fan motor and electrical components, extend the service life of related components, and reduce the failure rate of the system and the subsequent cleaning and maintenance costs.

[0027] The airflow that has been separated from liquid water is purer and drier, which reduces the adverse effects of humid air on the cooling effect, makes the quality of the cold air delivered into the car cabin higher, helps to maintain a more uniform and effective temperature field in the car cabin, and indirectly improves the overall cooling efficiency of the air conditioning system.

[0028] This invention, by setting up a gas-liquid separation mechanism 3, can actively intercept and separate condensate droplets generated on the surface of the evaporator by high-speed airflow, significantly reducing or even eliminating the risk of condensate being sucked into the fan and directly blown into the passenger compartment. This effectively avoids localized dampness, passenger discomfort, and odor problems caused by condensate spraying in the passenger compartment, thereby improving passenger comfort and the quality of the passenger compartment environment.

[0029] like Figure 3 and Figure 4 As shown, in some embodiments, the gas-liquid separation mechanism 3 includes a vertical pipe 301, which is always perpendicular to the ground after the equipment is installed. The pipe 2 is vertically connected to the middle of the vertical pipe 301, and the connection state between the pipe 2 and the vertical pipe 301 is a lying T-shape. The bottom end of the vertical pipe 301 is provided with a collection part 302, and a baffle 303 is provided inside the vertical pipe 301 and located at the output end of the pipe 2. The core principle here is to use the difference in density between gas and liquid, and the inertial difference generated when the flow direction is changed, combined with gravity, to achieve separation. That is, when the gas output from the pipe 2 flows in a curved shape under the action of the baffle 303, it first moves towards the collection part 302 at the bottom end of the vertical pipe 301, and then moves towards the top end of the vertical pipe 301. In this process, the separation of gas and liquid can be completed.

[0030] like Figure 4As shown, in some embodiments, the baffle 303 has an inclined section 3031 and a vertical section 3032. The vertical section 3032 extends toward the collection section 302. This design causes the gas to move in a U-shape as it passes through the vertical section 3032 of the baffle 303 toward the top of the vertical tube 301. The airflow direction changes drastically as it passes through, resulting in stronger centrifugal force and better separation effect.

[0031] like Figure 3 and Figure 4 As shown, in some embodiments, the collection unit 302 includes an unglazed ceramic jar 3021, which is connected to the bottom end of the vertical pipe 301. During the firing process, the evaporation of water and the combustion of organic matter leave countless tiny pores and capillary channels 2 inside and on the surface of the clay body. Although these pores may not be visible to the naked eye, they are enough to allow air molecules to pass through. The top of the jar has a conical surface 3022, the diameter of which gradually decreases from top to bottom. The inlet is located at the lowest point of the conical surface 3022. The conical surface 3022 can guide the water body, thus setting the inner diameter of the inlet of the unglazed ceramic jar 3021 to be smaller, thereby reducing the entry of gas. At the same time, the permeability of the ceramic jar does not mean that it is unobstructed. The air entering the vertical pipe 301 will still flow towards its unblocked top. By adopting this design, the collected water can slowly seep out and evaporate through the tiny capillary pores on the unglazed ceramic jar 3021.

[0032] like Figure 3 and Figure 4 As shown, in some embodiments, the inner and outer walls of the unglazed pottery jar 3021 are both serrated, such as... Figure 4 As shown, by adopting this design, the water permeability area of ​​the unglazed pottery jar 3021 can be increased, thereby increasing the rate at which water seeps out of the jar.

[0033] like Figure 4 As shown, in some embodiments, the unglazed ceramic jar 3021 is threaded to the bottom end of the vertical pipe 301. The threaded connection has the advantages of convenient installation and simple disassembly.

[0034] like Figure 1 and Figure 2 As shown, in some embodiments, the pipe 2 is rotatably coupled with the mounting plate 1. With this design, when the vertical pipe 301 is not perpendicular to the ground after installation, the state of the vertical pipe 301 can be adjusted by rotating the pipe body without moving other components.

[0035] like Figure 1 and Figure 2As shown, in some embodiments, there are two pipes 2. The mounting plate 1 has a diversion cavity 4 and is connected to the two pipes 2. The other side of the mounting plate 1 has an air inlet 5 connected to the diversion cavity 4. After installation, the air inlet 5 is connected to the air outlet pipe of the evaporator. By diverting the output gas of the evaporator, the total amount of water collected by a single unglazed ceramic jar 3021 can be reduced, so that the collection amount of the unglazed ceramic jar 3021 can be balanced with the seepage amount.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A passenger vehicle air conditioning evaporator airflow guiding device, characterized in that, include: Mounting plate (1), on which a pipe (2) connected to the output end of an external evaporator is installed; A gas-liquid separation mechanism (3) is located at the end of the pipe (2) to separate the condensate entrained in the cooling gas.

2. The airflow guiding device for the evaporator of a bus air conditioner according to claim 1, characterized in that, The gas-liquid separation mechanism (3) includes a vertical pipe (301), a pipe (2) is vertically connected to its middle part, a collection part (302) is provided at the bottom end of the vertical pipe (301), and a baffle (303) is provided inside the vertical pipe (301) and located at the output end of the pipe (2).

3. The airflow guiding device for the evaporator of a bus air conditioner according to claim 2, characterized in that, The baffle (303) has an inclined section (3031) and a vertical section (3032), the vertical section (3032) extending toward the collection part (302).

4. The airflow guiding device for the evaporator of a bus air conditioner according to claim 3, characterized in that, The collection section (302) includes an unglazed pottery jar (3021) with a conical surface (3022) on its top, and its inlet is located at the lowest point of the conical surface (3022). The unglazed pottery jar (3021) is connected to the bottom end of the vertical pipe (301).

5. The airflow guiding device for the evaporator of a bus air conditioner according to claim 4, characterized in that, The unglazed pottery jar (3021) has ring-tooth-shaped inner and outer walls.

6. The airflow guiding device for the evaporator of a bus air conditioner according to claim 5, characterized in that, The unglazed pottery jar (3021) is threaded to the bottom end of the vertical pipe (301).

7. The airflow guiding device for the evaporator of a bus air conditioner according to claim 2, characterized in that, The pipe (2) is rotatably fitted with the mounting plate (1).

8. The airflow guiding device for the evaporator of a bus air conditioner according to claim 7, characterized in that, There are two pipes (2). The mounting plate (1) has a flow divider (4) inside, which is connected to the two pipes (2). An air inlet (5) connected to the flow divider (4) is opened on the other side of the mounting plate (1).

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